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Freezing Point Of Naphthalene
Part 1 of Paper
....tand gas source
test tube test tube clamps
thermometer naphthalene
Bunsen burner goggles
hose stopwatch
III. Procedure
1. Assemble the Bunsen burner, attaching one end of the hose to the
burner and the other to a gas source.
2. Assemble the ring stand so that a ring clamp is attached to the
stan.... Part 2 of Paper
....by the teacher.
IV. Data
Time Elapsed Temperature of Naphthalene Time
Temperature
Initial (0:00) 100oC 7:00
78.5oC
0:30 97.5oC 7:15
78.3oC
1:00 93.0oC 7:30
78.3oC
1:30 89.5oC 7:45
79.0oC
2:00 86.1oC 8:00
79.0oC
2:30 84.6oC 8:15
79.0oC
2:45 82.3oC 8:30
79.0oC
3:00 81.2oC 8:45
79.0oC
3:15 81.0oC 9:00
79.0oC
3:30 80.5oC 9:15
78.5oC
3:45 80.2oC 9:30
78.1oC
4:00 80.0oC 9:45
78.0oC
4:15 79.9oC .... |
| Number of words: 441 - Approximate pages: 2 |
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